A topic from AEG's L5R CCG Rules forum, copied for Oracle of the Void from a copy of the forum saved in October 2015, so pages it didn't save are missing. Players' names are left out; the rules officials are named. Rulings are as they stood on these dates; later rulings, the rulebooks and the Rules Archive may differ.
With the following ruling, it was stated that personalities are not able to move into battlefields after being in battle resolution as the attacker the same turn, even though the movement action off of Ubogin cannot be negated. viewtopic.php?f=59&t=72856
With the same justification for Hida Sozen, who cannot be killed by other players actions... Doesnt that make him immune to determination, since his death isn't negated, it just doesn't happen?
With the following ruling, it was stated that personalities are not able to move into battlefields after being in battle resolution as the attacker the same turn, even though the movement action off of Ubogin cannot be negated. viewtopic.php?f=59&t=72856
With the same justification for Hida Sozen, who cannot be killed by other players actions... Doesnt that make him immune to determination, since his death isn't negated, it just doesn't happen?
But Sozen's death IS negated.
http://rules.l5r.com/Glossary_C#Cannot: "When found in card text, and when referring to a type of cost or effect (e.g., bowing, Force bonuses), “cannot” (or "can not") means that a certain type of effect or cost is negated whenever it occurs."